Koibito wa Hatsujouki (Yaoi) manga

Koibito wa Hatsujouki (Yaoi)
Kamon Saeko 2008 released.
Romance / School Life / Smut / Supernatural / Yaoi
恋人は発情期, My Lover in Heat
263 voted


Kiyoharu, friendless and without a family, owns a single dog, Jirou. The dog, which miraculously turned into a human six months ago, went into heat and ravaged his master~

"Jiro, I love you very much - but it troubles me to have you make love to me so deeply." As Kiyoharu becomes deeply troubled, Jirou goes into heat yet again!

Other manga by the same author(s)


Koibito wa Hatsujouki Ch.7(end)

Feb 11, 2011

Koibito wa Hatsujouki Ch.6

Feb 11, 2011

Koibito wa Hatsujouki Ch.5

Feb 11, 2011

Koibito wa Hatsujouki Ch.4

Feb 11, 2011

Koibito wa Hatsujouki Ch.3

Feb 11, 2011

Koibito wa Hatsujouki Ch.2

Feb 11, 2011

Koibito wa Hatsujouki Ch.1

Feb 11, 2011
Total: Sort by: Popularity / Date
2014-12-16 14:55

All stories is so darn good and cute >_< but the last one not really like it but still love the art
2014-12-15 18:18
Dude this was freaking fantastic and I think I loved the Red Jewel Story the most!!!
2014-12-15 15:47
2014-12-15 02:08
All stories is so darn good and cute >_< but the last one not really like it but still love the art

182 Topics

  1. Lunatic Bandit
    December 15, 2014 7:36 am

    I would LOVE a continuation of the last story.

  2. devilkim
    November 24, 2014 1:06 am

    I realy love the bride of the red dragon, i would have loved if there was a continuation to the story; but i guess that way it keeps a certain mystery.

  3. Aja
    November 2, 2014 7:52 am

    I really wish the last one was longer!

  4. エル October 24, 2014 5:05 pm

    I wish there was more of the last story! It really captivated me. I want moar!

  5. Shia October 8, 2014 8:02 am

    Some are okay but most are a hit and miss. They were either too short or the story was rushed so it was less sexy. The tutor and train ones were had the better plots and flow.

  6. Cheeky Vampire September 25, 2014 7:11 pm

    this manga has everything! :D so amazing *.*

  7. articwolf
    August 21, 2014 7:15 am

    what a lovely story. like the animal ones and the last one.

  8. Sapphirewoman August 13, 2014 12:03 am

    I love this story alot more please thanks

  9. marry July 28, 2014 3:41 am

    i really love the last and the third stories
    i liked how honest the uke was about his desires in the third story and i liked how the uke give himself over completely to the seme in the last story

  10. Cutey Honey July 26, 2014 7:04 am

    If I were to rename each chapter in this story, they would be:
    Chapter 1: Cry-baby sensei and scary loser
    Chapter 2: Loser nerd and his shota
    Chapter 3: Two losers fap on a train
    Chapter 4: The thirst is real
    Chapter 5: Desperate loser screws his dog
    Chapter 6: Wasted loser screws his cat
    Chapter 7: Desperate loser cheats on his fiancee and suddenly goes full homo while in China

    • Zed
      August 2, 2014 11:57 am

      OhmyGod. This made me laugh so I hard I was tearing up x'D I did like this manga but your titles work so well!! :p

    • The 14th August 6, 2014 1:36 pm

      OMFG ROFL of the the best comments i have ever read! Im dying right now of laughter!!! XD

    • Zero September 11, 2014 2:47 pm

      SHIT !!!! My stomach hurts !!!! xD xD

    • MAXX September 18, 2014 7:07 am

      LOL ^-^

    • Vette
      September 25, 2014 3:07 am


    • shh December 15, 2014 6:49 am

      "Two losers fap on a train."
      This is the most accurate yet hilarious description I've read in my life.
      Thank you.

  11. Creepy stocker July 19, 2014 10:08 pm

    I love this manga

  12. mal July 19, 2014 1:17 am

    yoooooooooooooo what the friiiiiiiiiiiiick

  13. KKolorful July 11, 2014 6:29 am

    oh man I found it again!
    I freakin love the last story idk why but I have literally been daydreaming about it for the last like 5+ months haaaa

  14. Okane8aNai June 30, 2014 6:10 am

    wow >#< chapter 4-5 sure was something special. That cat was so hot tho *-* omgosh..

    • The 14th August 6, 2014 1:46 pm

      Ikr i love stories where cat-human or dog-humans are seme! KYAAAA

  15. onna31 June 25, 2014 10:35 pm

    Hot!!! Read with caution! Though i wish the last pairing have more scene, like the coworker worry he disappeared n serching for him....he been spirit away to some old time kingdom n such will b nice

  16. mangalover June 23, 2014 11:00 pm


  17. squishy 9264 June 19, 2014 4:46 am

    *Blinks* ... *speechless* .... Well, I have read a lot of yaoi, but THIS is something "different".

  18. fangirlforever June 18, 2014 11:28 pm

    i feel like i lost enough blood to fill entire oceans! massive nosebleed

  19. InLoveWithYaoi May 31, 2014 11:56 pm

    My nose have alot of blood coming out, it look like it was a murder scene in my room it everywhere!!

    • Binguiness June 13, 2014 10:12 am


  20. Mickey May 29, 2014 4:57 pm

    e...everything i ever need are in this manga *massive nosebleed*